Aceh (also referred to as Atjeh, Atjin, Acheen Achin.) is at the northern tip of Sumatra in Indonesia. It is believed to be one of the oldest kingdoms in Indonesia. Hindu and Buddist influence from India may have reached Aceh as early as the first century. sixth century A.D. Chinese chronicles. spoke of a kingdom on the northern tip of Sumatra named Po-Li. It is believed that Islam likely first entered the Indonesian archipelago through Aceh sometime...